CVE-2026-16083 Sipeed PicoClaw LINE Webhook line.go webhook.ParseRequest authentication replay
Attackers can bypass LINE webhook authentication via replay attacks in Sipeed PicoClaw, potentially gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16083?
CVE-2026-16083 is a medium-severity authentication bypass vulnerability in Sipeed PicoClaw, published on 18 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security flaw has been discovered in Sipeed PicoClaw up to 0.2.9. This affects the function webhook.ParseRequest of the file pkg/channels/line/line.go of the component LINE Webhook. The manipulation results in authentication bypass by capture-replay. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The reported GitHub issue was closed automatically with the label "not planned" by a bot.
Which versions are affected by CVE-2026-16083?
How do I fix CVE-2026-16083?
No fix has been published for CVE-2026-16083 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-16083 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16083 exists.
Sources
Also known as GHSA-mhxf-xvw6-4qw2.